[BVD-approach: the helm is the other way].
D000818:Animals; D001912:Bovine Virus Diarrhea-Mucosal Disease / Q000453:epidemiology / Q000517:prevention & control*; D002417:Cattle; D002568:Certification; D001908:Diarrhea Viruses, Bovine Viral / Q000276:immunology*; D009426:Netherlands / Q000453:epidemiology; D014611:Vaccination / Q000662:veterinary*; D014765:Viral Vaccines / Q000191:economics / Q000276:immunology*
D014765:Viral Vaccines
BVD-aanpak: het roer is om.